Care to name some non-ingame music you listen to while playing?

Ingame or not, most music annoys me while I'm playing, so I would describe my selection as a mostly more fun than annoying supplement to Doom gameplay.

I wanna see what's in your playlists.

This has worked nicely for me so far (listening on shuffle):

Peaceful Abrasiveness (Colosso) https://music.colossometal.com/album/peaceful-abrasiveness

The Bloodline Project (Bloodline) https://mendelian.bandcamp.com/album/the-bloodline-project
Misanthropy (Burning The Padre) https://burningthepadre.bandcamp.com/album/misanthropy-ep
IDKFA (Andrew Hulshult) https://www.moddb.com/mods/brutal-doom/addons/idkfa-doom-soundtrack
Candle Cove (Echopraxia) https://echopraxia.bandcamp.com/album/candle-cove
Subliminal Colors (Mendel)

Tomb Of The Mutilated (Cannibal Corpse) https://cannibalcorpse.bandcamp.com/album/tomb-of-the-mutilated
Quake Champions: Doom Edition (Michael Markie)
Brutal Legend (Peter McConell)

Powerslave (Iron Maiden)
Unreal Tournament 3 (Rom Di Prisco And Jesper Kyd)
Quake III: Arena Noize (Sonic Mayhem)

March Of The Slunks (Buckethead)
In Virgo (In Virgo) https://invirgo.bandcamp.com/album/in-virgo
Vol 3: The Subliminal Verses (Slipknot)
Modus Operandi (Amygdala) https://ektoplazm.com/free-music/amygdala-modus-operandi
Cirque (Biosphere)
Solar Nexus (Cybernetika) https://ektoplazm.com/free-music/cybernetika-solar-nexus
DOOM (Mick Gordon)
Back To Saturn X Episode Two Remastered (Kira)
Back To Saturn X Episode One Remastered (Kira)
Saturn X Episode 1 (James Paddock) https://jamespaddock.bandcamp.com/album/saturn-x-soundtrack-episode-1
Saturn X Episode 2 (James Paddock)
Back To Saturn X Vol. 1  (Esselfortium)

LARD

I listen to The Dead and some Beatles! That is the real kick-ass music!

Especially Fool on The Hill!

Generally I will listen to a playlist of Skinny Puppy, Ministry, Nine Inch Nails, KMFDM, Fear Factory etc. Or I will have some Iron Cthulhu Apocalypse to accompany me on my journey through hell.

I like me some ritual dark ambient for the long playthroughs. If i play for shorter times i let the MIDIs play.
Like Herbst9 for example
 

New Tool album kicks some serious ass

I usually listen to the in-game MIDIs, but if I've been stuck on a level long enough, or if I'm grinding something like a full-episode or full-PWAD single-segment demo, I listen to my boy Filmmaker:

How did you take the music from these websites and create playlists? Did you buy the albums?

I’ve made good use of this video on a number of occasions, though these days I generally prefer the in-game soundtrack.